Human Factors and Ergonomics Journal (HFEJ)

Volume 4, No. 1 (2019)

Published online on 1 June 2019

Articles

Muhammad Muhsin HAIRUDIN

Page 1 – 6   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Commercial safety helmets offer head protection towards small falling items in working surroundings. In Malaysia, the construction industry is one of the major contributors for loss of life at the place of work. In spite of this fact, the study shows that seven out of ten safety helmets users avoided wearing helmets due to the advanced sense of hotness. This study aims to determine the type of industrial safety helmet use and the thermal perception of the industrial workers. An analytical experimental method was applied. Eighteen volunteers evaluated three different helmet designs. This study shows that active type safety helmet was the most preferred (Mean:4.1 SD:0.758) compare to other types of safety helmet tested and have significant different helmet temperature by ANOVA with a p-value less than 0.001. There is a significant correlation (p-value less than 0.001) of helmet temperature and comfort level of safety helmet with R2= 0.329. Every 1 unit decrease of helmet mean temperature, the comfort scale will increase as much as 0.276. This result is similar to previous research that supports that ventilation improves the comfort level.

The finding of this study suggests that active type safety helmet is most preferred because it has the lowest in helmet temperature. The lower the helmet temperature, the greater the comfort level.

Quinta Ewoh ENCHO¹, Rozanah AB. RAHMAN², Shamsul Bahri MOHD TAMRIN³, Vivien HOW³

Page 7 – 12   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

It is not unlikely in Cameroon to be involved in road accidents. The debate as to who is responsible has been a bone of contention among travellers for years. Some have put the blame on the government for inadequate laws and road unworthiness. Others blamed the drivers for being ‘cash crazy’ and reckless while others have blamed the companies for hiring drivers that are not qualified and not putting safety policies in place. In all these cases, the degree of accidents that had taken place on these roads is alarming and someone therefore has to shoulder the responsibility for there to be a change. This article reviews the concept of the law of negligence citing cases of negligent behaviours from all parties involved. The aim of this article is to create awareness on the ongoing cases of accidents, both reported and unreported for government intervention and to raise public awareness.

Mohd Noraiman MOHD FADZIL1, Shamsul Bahri MD TAMRIN1

Page 13 – 24   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

A cross-sectional study was conducted to determine the effect of hand arm vibration symptoms on ‘Cantas’ machine among palm oil harvester in Selangor. Questionnaire survey is use as strategy of enquiry for achieving the objectives. A vibration analyser HVM 100 attached to a tri-accelerometer was used. The vibration level for working hours is 2.30 m/s2 and is deemed safe as specified in ISO 5349-1. The prevalence of hand-arm vibration syndrome (HAVS) based on reported symptoms through questionnaires was 39.4%. None of them reported persistence in the symptoms. The ergonomics risk factor mean score was 2.93 out of 4. The issues on ergonomic design was weight, maintenance, portability, ease of usage and efficiency. In conclusion, regular screening for early signs of vibration-related damage is needed as an important part of preventing the aggravation of health problems. The workers also gained awareness regarding vibration exposure and safe working procedure on using Cantas machine.

Stephen T.F. POON

Page 25 – 31   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

This paper discusses the enduring influences of the Bauhaus in contemporary design by comparing the movement’s impact on 20th-century social change, and as a model for social inventiveness and innovation through promoting equality of arts for everyone by combining the arts and business. The review of literature and a comparative analysis of similarities and differences between Bauhaus and IKEA helps understand contemporary framing of design innovation, through minimalist styles mass produced for modern cultural consumption. The main findings show that shifts have occurred from classical Bauhaus to present design thinking methods, where pricing, distribution, logistics, and the realities of competitive markets have affected consumer perceptions of value and market notions of design excellence. The paper concludes that leadership in design innovation today calls for more pragmatic considerations of strategic pricing over design and quality. Affordability and price tag are perceived to increase mass appeal and accessibility of mass-designed products for consumer segments, but that comes at the expense of awareness and appreciation of quality, materials, and labour and workmanship costs.

Dian D.I. DARUIS1, Baba M. DEROS2, Nishant JEYASEKARAN2

Page 32 – 40   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Increased number of injuries due to repetitive movements, excessive force and awkward postures makes ergonomics an important factor in safety and health at workplace. Statistics showed that musculoskeletal disorders are the main cause of loss of productivity in many countries. This study aims to identify ergonomics risk factors that causes work-related musculoskeletal disorders to workers at X infrastructure construction site located in Bukit Bintang, Kuala Lumpur. First objective of this study was to identify workers’ body part with highest pain and discomfort complaints.

The second objective was to explore the relationship between ergonomics risk factors in construction with the pain or discomfort and finally to investigate the relationship between workers’ socio-demographics with the pain and discomfort scores. The investigations were based on the recent guidelines on Ergonomic Risk Assessment issued by DOSH Malaysia. Discomfort survey forms were filled by conducting interview sessions with the selected respondents from three types of work activity which included bar benders, carpenters and general workers. As there were numerous complaints from respondents based on the Self-Assessment Musculoskeletal Pain forms, Initial Ergonomic Risk Assessment was done by observing the three types of work activity where checklists were filled based on the observation. Referring to results of initial assessment of ergonomic risk, Advanced Ergonomic Risk Assessment was carried out on bar benders as this group of respondents had the highest score in the summary rating checklist of Initial Ergonomic Risk Assessment…

Nor Atiqah BAHARUDDIN1, Ummi Noor Nazahiah ABDULLAH1,2, Norashiken OTHMAN1,2

Page 41 – 45   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

This paper is investigating the ergonomics risks in the workstation of synthetic gloves production floor. These synthetic gloves are used for medical and healthcare purposes. The methods of Ergonomics Risk Assessment (ERA), Rapid Upper Limb Assessment (RULA), Rapid Entire Body Assessment (REBA) and Occupational Repetitive Assessment (OCRA) were applied to identify the problem of workstation and operator. The results show that the initial ERA assessment support for further investigation on static, sustained and repetitive risk while the average score of RULA, REBA and OCRA is 6,7 and 19.4 respectively. These results will be translated into measurable design parameters in the improvement design of synthetic gloves production workstation.

Muhammad Syafiq SYED MOHAMED,1, Akmal Hafiz AZANI2, Lokman ABDULLAH1, Ruzaidi ZAMRI1, Mohd Nazmin MASLAN1, Mahasan MAT ALI1, Maslan ZAINON1, Noorazizi MOHD SAMSUDDIN3

Page 46 – 51   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Left-handed users are often overlooked by equipment and hand tool designers. Designers may assume that left handers will eventually learn to adapt themselves in a right-handed environment. However in reality left handers face a lot of difficulties when trying to perform tasks meant for right-handed users. Medical personnel are most affected by this issue, followed by workers in non-medical field such as services and manufacturing. This review aims to highlight the issues faced left handers by analysing common household product examples as well as hand tools in occupational settings. Discussions are centred on the differences between the right-handed tools versus left-handed tools, as well as task/procedural challenges faced by left handers. In summary, the notion of designing an ambidextrous tool may not be a realistic recommendation for tool manufacturers and designers.

Ahmad Saifullah SULONG1, Ammar ADNAN1, Radin Zaid RADIN UMAR2, Siby SAMUEL3, Norhashimah MOHD SHAFFIAR1, Mohd Hanafi ANI1, Malek HAMID1, *

Page 52 – 57   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Video tutorial is one of the instruction methods for teaching. It is a method of transferring knowledge by utilizing the use of video as part of the learning process. Despite the advantages of the video tutorial and the advancement of technology, manual handbook usage is still in place. In comprehending an engineering machinery operation e.g. engineering experiment, it is unknown if the usage of video tutorial may increase the users’ learning performance.

Thus, the objective of this study is to evaluate the effect of manual handbook and video tutorial on the specific part of engineering experiment – safety precaution, apparatus, procedure, and housekeeping – on users’ learning performance. Four videos of four selected engineering experiments – Turning, Arc Welding, CNC Milling, and Bench Work – were prepared based on its manual handbooks. Each video tutorial consists of four parts – safety precaution, apparatus, procedure, and housekeeping procedure of the experiment. In total, sixteen engineering students between 19-20 years of age completed the study. They were pseudo-randomly assigned into either the Manual Handbook or Video Tutorial group – eight participants for each group…

Muhammad Syamim Zikri BAHARUDIN1, Ammar ADNAN, Radin Zaid RADIN UMAR2, Siby SAMUEL3, Mohd Hanafi ANI1, Malek HAMID1, *

Page 58 – 65   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Hazard anticipation is an essential skill for the road user, especially the vulnerable road user group. This is because the vulnerable road user group have the highest risk of road injuries due to no external protection. Among the group, the number of road deaths involving motorcyclists is at an alarming state. By comparing the number of road accidents at the intersections, T-junction has a higher rate than cross-junction. Thus, the aim of the study is to evaluate motorcyclists’ behavior at the unsignalized T-junctions. The objectives are: (i) to evaluate the stopping behavior of motorcyclists at the stop area when approaching the T-junction; and (ii) to evaluate the head movement behavior of motorcyclists before turning into traffic. 

A field study was conducted at fifteen scenarios that were combined into one complete circuit. Twenty male participants between the ages of 18-29 years old were recruited for the study. The participants were equipped with a head tracker in order to analyse their stopping behavior and head movements at the T-junctions. Dependent variables for this study were the stopping behavior and the hazard anticipation score of motorcyclists. If a motorcyclist stops at T-junction before entering the primary route, he was scored 1, and 0 if not stopping. Besides, a motorcyclist was also scored 1 if he performed head movement (anticipate potential hazard) before entering the primary route, and 0 if not performed….

Muhammad Nur Luqman CHUMARI1, Mohd Razif MAT HASAN2, Ammar ADNAN1, Radin Zaid RADIN UMAR3, Siby SAMUEL4, ‘Atiah ABDULLAH SIDEK1, Malek HAMID1, *

Page 66 – 74   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

In the era of booming gaming industries, gamers are exposed to prolonged sitting involving awkward posture and repetitive tasks that contribute to the risk for musculoskeletal disorders. However, there is no study have been done on the effect of prolonged gaming activities on the human trunk and neck postures. Thus, the objectives of the study are: (i) to evaluate the effect of prolonged gaming on the trunk posture by using the trunk posture analysis; (ii) to evaluate the effect of prolonged gaming on the trunk posture by using the trunk posture analysis; and (iii) to evaluate the discomfort level among the gamers during pre- and post-experimental session by using the Corlett & Bishop’s Scale. Ten participants between 20-25 years of age [mean = 23.85; SD 1.16] completed the study where their activities during gaming were recorded for three hours. From the video output, their postures (trunk and neck) was scored by separating the data into three different categories – one-hour-data, two-hours-data, and three-hours-data…

Muhammad Hafizullah MD SALLEH1, Ammar ADNAN1, Radin Zaid RADIN UMAR2, Siby SAMUEL3, Norhashimah MOHD SHAFFIAR1, Mohd Hanafi ANI1, Malek HAMID1, *

Page 75 – 83   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Nowadays, the use of video tutorial as a method of teaching and learning has become popular among educators. Video tutorial is more practical and can deliver more information to the users. Nonetheless, the mode of presentation can be hard to process in a short period. User-paced (or self-pacing) application in the multimedia presentation has been shown a positive effect on elaboration learning. Looking at this advantage, a user-paced video tutorial for machining operation is being introduced in the study. To identify the effectiveness of user-paced in video tutorial design, it was compared with the system-paced video tutorial (system determined the duration and pace of the information presented). 

The objectives of the study are; (i) to evaluate the effect of user-paced and system-paced of machine’s video tutorial on learning performance (overall); and (ii) to evaluate the effect of user-paced and system-paced of machine’s video tutorial on learning performance (by part of the video tutorial – safety, equipment, machine setup, procedure, and housekeeping). Sixteen participants completed the study where they were pseudo-randomly assigned into two different groups – User-paced or System-paced (eight participants for each group)…

Muhammad Shah Afendy MOHD AMIR1, Malek HAMID1, *

Page 84 – 91   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Head-up Displays (HUD) is a new technology available in the automotive industry. Basically, this technology used to project a piece of important information required by the drivers towards the windshield of the vehicle. Due to the fact that the HUD system is still new in the market, so its mechanism, function, and interface design still can be improved by adding some values to the system. In this study, the focus is more on the improvement of the HUD control panel design to minimize the design complexity as well as to reduce the distraction of the drivers while driving. Nowadays, the application of the Kansei Ergonomics is growing rapidly due to many researchers and product designer are attracted to explore and trying to relate the Ergonomics concept into the Kansei Engineering concept in order to optimize the design that can fit to the human and their preferences. The study is started by identifying the suitable design properties and Kansei Ergonomics concept words that related to the HUD system. Eighteen design properties and nine Kansei Ergonomics concept words were determined. This finding was used to develop the Semantic Differential Question using the Google Form…

Muhammad Asyraf MOHD NOR HISHAM1, Ammar ADNAN1, Radin Zaid RADIN UMAR2, Siby SAMUEL3, Mohd Hanafi ANI1, Malek HAMID1, *

Page 92 – 98   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Road accident is one of the top contributing factors for human fatalities around the world. Among the road users, motorcyclist is considered one of the most vulnerable road user group that contributed to a large number of road crashes. For this study, the focus is on the effect of merging road design on hazard anticipation behavior of motorcyclist during merging in traffic. The objectives are: (i) to evaluate hazard anticipation behavior among motorcyclist during merging into an urban expressway and; (ii) to evaluate the effect of merging road design on motorcyclists hazard anticipation behavior during merging into an urban expressway. An observational study was conducted in which three thousand-two hundred of motorcyclists were observed at sixteen scenarios locations – eight scenarios for each straight and curved road. Dependent variable for this study was the percentage of hazard anticipation behavior performed by motorcyclist. If a motorcyclist turns his or her head towards the target zone while in the launch zone, he or she was scored 1, else 0. Overall, only 46.5% of motorcyclists do practise safe riding behavior by anticipating hazard during merging in traffic [χ2 (1) = 15.680, p = < 0.0001]….

Ahmad Ridzuan MOHD ZUBER1, Ammar ADNAN1, Radin Zaid RADIN UMAR2, Siby SAMUEL3, Norhashimah MOHD SHAFFIAR1, Mohd Hanafi ANI1, Malek HAMID1, *

Page 99 – 105   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Video tutorial is one of the best media for teaching and learning. It can be applied in numerous fields of studies such as medical, computer sciences, as well as an engineering field as to give an instruction on how to use appliances, devices, or systems. The use of video tutorial captions, the voice of command of instruction, the quality of the video and the system used are among the contributing factors for the success or failure of a video tutorial. However, it is unknown if the type of voice of command may aid in improving the learning performance of video tutorial of engineering machinery. 

The objectives of the study are: (i) to evaluate the effect of active and passive voice as the command of instruction on the machine’s video tutorial on learning performance of the video tutorial; and (ii) to evaluate the effect of active and passive voice as the command of instruction on the safety, equipment, and procedure part of machine’s video tutorial on learning performance of the video tutorial. Sixteen participants were recruited and randomly assigned into two different groups, namely Active and Passive. The Active group and Passive group were stimulated with four video tutorials that used an active voice and passive voice respectively. After the video tutorial, a participant was assessed with a quiz that covered the content of the tutorials…

Mohd Farhan NAZMI1, Ammar ADNAN1, Radin Zaid RADIN UMAR2, Siby SAMUEL3, Norhashimah MOHD SHAFFIAR1, Mohd Hanafi ANI1, Malek HAMID1, *

Page 106 – 111   |   Vol. 4, No. 1 (2019)   |    Available online on 1 June 2019

Captioning is a process of converting an audio portion of video production into text, which normally shown on a display screen. The use of video tutorial caption is one of the contributing factors for the success or failure of a video tutorial on learning performance. However, in the video tutorial for engineering machinery, it is still unclear how different type of captioning – full, partial, and no caption – may affect users’ learning performance. The objectives of the study are: (i) to evaluate the effect of full caption, partial caption, and no caption of machine’s video tutorial on users’ learning performance; (ii) to evaluate the effect of full caption, partial caption, and no caption of machine’s video tutorial based on particular part of the video – safety, equipment, procedure, and housekeeping – on users’ learning performance. Twenty-four participants were randomly assigned into three different groups, namely Full Caption, Partial Caption, and No Caption, and they were stimulated with four video tutorials (of four engineering machinery – that used the full caption, partial caption, and no caption respectively…..

We provide opportunities to publish your research